MTF Tester

MTF Tester

An analytical instrument for testing the performance of optical components

Developed by Optikos, Inc. (USA), the MTF tester measures the modulation transfer function (MTF) and other optical parameters of optical lenses, such as focal length, distortion, and field curvature. This equipment uses VideoMTF video imaging technology for real-time measurement, offering high precision and repeatability. It is suitable for production testing in fields such as automotive lenses, mobile phone cameras, and security lenses. The system is equipped with OpTest7 software, supporting data export and customized test schemes to meet the testing needs of various optical systems, including those with infinite and finite optical paths.

Technical Principle

The MTF tester evaluates the imaging performance of an optical system by analyzing the modulation transfer function (MTF), including on-axis and off-axis MTF values, and meridional and sagittal defocus MTF curves. This system can simultaneously measure parameters such as line spread function, phase transfer function, effective focal length, and distortion, supporting dynamic testing of both infinite and finite optical path systems.

Product Models and Configurations

Optest Series: Standard benchtop equipment, 3m × 1m in size, weighing less than 200kg, equipped with an OG-1000 light source and a reflective collimator, suitable for batch testing of visible light lenses.

LensCheck LWIR: Designed specifically for long-wave infrared optical lenses, featuring a compact 355mm × 762mm × 1219mm structure, integrating VideoMTF video imaging technology for real-time measurement.

Software System

Equipped with OpTest7 professional software, running on the Windows 7 platform, supporting data export to Excel and automatic generation of test reports. The software provides both engineer and production modes to meet the testing needs of different stages of R&D and production lines.

Application Areas

Widely used for quality monitoring of automotive lenses, mobile phone camera modules, security monitoring equipment, thermal imagers, and projection optical systems.

Technical Features

Multispectral Compatibility: Supports measurement of both visible light and long-wave infrared spectral ranges. Modular Design: Includes expandable components such as an image analyzer and lens mount to adapt to different testing scenarios.

Automated Operation: Integrates autofocus and parameter analysis functions, developed based on Optikos' OpTest7 software.